Bright electrically contacted circular Bragg grating resonators with deterministically integrated quantum dots
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866917691605909504 |
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| author | Wijitpatima, Setthanat Auler, Normen Mudi, Priyabata Funk, Timon Barua, Avijit Shrestha, Binamra Limame, Imad Rodt, Sven Reuter, Dirk Reitzenstein, Stephan |
| author_facet | Wijitpatima, Setthanat Auler, Normen Mudi, Priyabata Funk, Timon Barua, Avijit Shrestha, Binamra Limame, Imad Rodt, Sven Reuter, Dirk Reitzenstein, Stephan |
| contents | Cavity-enhanced emission of electrically controlled semiconductor quantum dots is essential in developing bright quantum devices for real-world quantum photonic applications. Combining the circular Bragg grating (CBG) approach with a PIN-diode structure, we propose and implement an innovative concept for ridge-based electrically-contacted CBG resonators. Through fine-tuning of device parameters in numerical simulations and deterministic nanoprocessing, we produced electrically controlled single quantum dot CBG resonators with excellent electro-optical emission properties. These include multiple wavelength-tunable emission lines and a photon extraction efficiency (PEE) of up to (30.4$\pm$3.4)%, where refined numerical optimization based on experimental findings suggests a substantial improvement, promising PEE >50%. Additionally, the developed quantum light sources yield single-photon purity reaching (98.8$\pm$0.2)% [post-selected: (99.5$\pm$0.3)%] and a photon indistinguishability of (25.8$\pm$2.1)% [post-selected: (92.8$\pm$4.8)%]. Our results pave the way for high-performance quantum devices with combined cavity enhancement and deterministic charge-environment controls, advancing the development of photonic quantum information systems such as complex quantum repeater networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_08057 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Bright electrically contacted circular Bragg grating resonators with deterministically integrated quantum dots Wijitpatima, Setthanat Auler, Normen Mudi, Priyabata Funk, Timon Barua, Avijit Shrestha, Binamra Limame, Imad Rodt, Sven Reuter, Dirk Reitzenstein, Stephan Mesoscale and Nanoscale Physics Applied Physics Cavity-enhanced emission of electrically controlled semiconductor quantum dots is essential in developing bright quantum devices for real-world quantum photonic applications. Combining the circular Bragg grating (CBG) approach with a PIN-diode structure, we propose and implement an innovative concept for ridge-based electrically-contacted CBG resonators. Through fine-tuning of device parameters in numerical simulations and deterministic nanoprocessing, we produced electrically controlled single quantum dot CBG resonators with excellent electro-optical emission properties. These include multiple wavelength-tunable emission lines and a photon extraction efficiency (PEE) of up to (30.4$\pm$3.4)%, where refined numerical optimization based on experimental findings suggests a substantial improvement, promising PEE >50%. Additionally, the developed quantum light sources yield single-photon purity reaching (98.8$\pm$0.2)% [post-selected: (99.5$\pm$0.3)%] and a photon indistinguishability of (25.8$\pm$2.1)% [post-selected: (92.8$\pm$4.8)%]. Our results pave the way for high-performance quantum devices with combined cavity enhancement and deterministic charge-environment controls, advancing the development of photonic quantum information systems such as complex quantum repeater networks. |
| title | Bright electrically contacted circular Bragg grating resonators with deterministically integrated quantum dots |
| topic | Mesoscale and Nanoscale Physics Applied Physics |
| url | https://arxiv.org/abs/2406.08057 |